diff options
Diffstat (limited to 'drivers/net/ax88796.c')
| -rw-r--r-- | drivers/net/ax88796.c | 1034 |
1 files changed, 0 insertions, 1034 deletions
diff --git a/drivers/net/ax88796.c b/drivers/net/ax88796.c deleted file mode 100644 index 4bebff3faea..00000000000 --- a/drivers/net/ax88796.c +++ /dev/null @@ -1,1034 +0,0 @@ -/* drivers/net/ax88796.c - * - * Copyright 2005,2007 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * Asix AX88796 10/100 Ethernet controller support - * Based on ne.c, by Donald Becker, et-al. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/isapnp.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/ethtool.h> -#include <linux/mii.h> -#include <linux/eeprom_93cx6.h> -#include <linux/slab.h> - -#include <net/ax88796.h> - -#include <asm/system.h> -#include <asm/io.h> - -static int phy_debug = 0; - -/* Rename the lib8390.c functions to show that they are in this driver */ -#define __ei_open ax_ei_open -#define __ei_close ax_ei_close -#define __ei_poll ax_ei_poll -#define __ei_start_xmit ax_ei_start_xmit -#define __ei_tx_timeout ax_ei_tx_timeout -#define __ei_get_stats ax_ei_get_stats -#define __ei_set_multicast_list ax_ei_set_multicast_list -#define __ei_interrupt ax_ei_interrupt -#define ____alloc_ei_netdev ax__alloc_ei_netdev -#define __NS8390_init ax_NS8390_init - -/* force unsigned long back to 'void __iomem *' */ -#define ax_convert_addr(_a) ((void __force __iomem *)(_a)) - -#define ei_inb(_a) readb(ax_convert_addr(_a)) -#define ei_outb(_v, _a) writeb(_v, ax_convert_addr(_a)) - -#define ei_inb_p(_a) ei_inb(_a) -#define ei_outb_p(_v, _a) ei_outb(_v, _a) - -/* define EI_SHIFT() to take into account our register offsets */ -#define EI_SHIFT(x) (ei_local->reg_offset[(x)]) - -/* Ensure we have our RCR base value */ -#define AX88796_PLATFORM - -static unsigned char version[] = "ax88796.c: Copyright 2005,2007 Simtec Electronics\n"; - -#include "lib8390.c" - -#define DRV_NAME "ax88796" -#define DRV_VERSION "1.00" - -/* from ne.c */ -#define NE_CMD EI_SHIFT(0x00) -#define NE_RESET EI_SHIFT(0x1f) -#define NE_DATAPORT EI_SHIFT(0x10) - -#define NE1SM_START_PG 0x20 /* First page of TX buffer */ -#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ -#define NESM_START_PG 0x40 /* First page of TX buffer */ -#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ - -/* device private data */ - -struct ax_device { - struct timer_list mii_timer; - spinlock_t mii_lock; - struct mii_if_info mii; - - u32 msg_enable; - void __iomem *map2; - struct platform_device *dev; - struct resource *mem; - struct resource *mem2; - struct ax_plat_data *plat; - - unsigned char running; - unsigned char resume_open; - unsigned int irqflags; - - u32 reg_offsets[0x20]; -}; - -static inline struct ax_device *to_ax_dev(struct net_device *dev) -{ - struct ei_device *ei_local = netdev_priv(dev); - return (struct ax_device *)(ei_local+1); -} - -/* ax_initial_check - * - * do an initial probe for the card to check wether it exists - * and is functional - */ - -static int ax_initial_check(struct net_device *dev) -{ - struct ei_device *ei_local = netdev_priv(dev); - void __iomem *ioaddr = ei_local->mem; - int reg0; - int regd; - - reg0 = ei_inb(ioaddr); - if (reg0 == 0xFF) - return -ENODEV; - - ei_outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); - regd = ei_inb(ioaddr + 0x0d); - ei_outb(0xff, ioaddr + 0x0d); - ei_outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); - ei_inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ - if (ei_inb(ioaddr + EN0_COUNTER0) != 0) { - ei_outb(reg0, ioaddr); - ei_outb(regd, ioaddr + 0x0d); /* Restore the old values. */ - return -ENODEV; - } - - return 0; -} - -/* Hard reset the card. This used to pause for the same period that a - 8390 reset command required, but that shouldn't be necessary. */ - -static void ax_reset_8390(struct net_device *dev) -{ - struct ei_device *ei_local = netdev_priv(dev); - struct ax_device *ax = to_ax_dev(dev); - unsigned long reset_start_time = jiffies; - void __iomem *addr = (void __iomem *)dev->base_addr; - - if (ei_debug > 1) - dev_dbg(&ax->dev->dev, "resetting the 8390 t=%ld\n", jiffies); - - ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET); - - ei_status.txing = 0; - ei_status.dmaing = 0; - - /* This check _should_not_ be necessary, omit eventually. */ - while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) { - if (jiffies - reset_start_time > 2*HZ/100) { - dev_warn(&ax->dev->dev, "%s: %s did not complete.\n", - __func__, dev->name); - break; - } - } - - ei_outb(ENISR_RESET, addr + EN0_ISR); /* Ack intr. */ -} - - -static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, - int ring_page) -{ - struct ei_device *ei_local = netdev_priv(dev); - struct ax_device *ax = to_ax_dev(dev); - void __iomem *nic_base = ei_local->mem; - - /* This *shouldn't* happen. If it does, it's the last thing you'll see */ - if (ei_status.dmaing) { - dev_err(&ax->dev->dev, "%s: DMAing conflict in %s " - "[DMAstat:%d][irqlock:%d].\n", - dev->name, __func__, - ei_status.dmaing, ei_status.irqlock); - return; - } - - ei_status.dmaing |= 0x01; - ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); - ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); - ei_outb(0, nic_base + EN0_RCNTHI); - ei_outb(0, nic_base + EN0_RSARLO); /* On page boundary */ - ei_outb(ring_page, nic_base + EN0_RSARHI); - ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); - - if (ei_status.word16) - readsw(nic_base + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); - else - readsb(nic_base + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)); - - ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ - ei_status.dmaing &= ~0x01; - - le16_to_cpus(&hdr->count); -} - - -/* Block input and output, similar to the Crynwr packet driver. If you - are porting to a new ethercard, look at the packet driver source for hints. - The NEx000 doesn't share the on-board packet memory -- you have to put - the packet out through the "remote DMA" dataport using ei_outb. */ - -static void ax_block_input(struct net_device *dev, int count, - struct sk_buff *skb, int ring_offset) -{ - struct ei_device *ei_local = netdev_priv(dev); - struct ax_device *ax = to_ax_dev(dev); - void __iomem *nic_base = ei_local->mem; - char *buf = skb->data; - - if (ei_status.dmaing) { - dev_err(&ax->dev->dev, - "%s: DMAing conflict in %s " - "[DMAstat:%d][irqlock:%d].\n", - dev->name, __func__, - ei_status.dmaing, ei_status.irqlock); - return; - } - - ei_status.dmaing |= 0x01; - - ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); - ei_outb(count & 0xff, nic_base + EN0_RCNTLO); - ei_outb(count >> 8, nic_base + EN0_RCNTHI); - ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO); - ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI); - ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); - - if (ei_status.word16) { - readsw(nic_base + NE_DATAPORT, buf, count >> 1); - if (count & 0x01) - buf[count-1] = ei_inb(nic_base + NE_DATAPORT); - - } else { - readsb(nic_base + NE_DATAPORT, buf, count); - } - - ei_status.dmaing &= ~1; -} - -static void ax_block_output(struct net_device *dev, int count, - const unsigned char *buf, const int start_page) -{ - struct ei_device *ei_local = netdev_priv(dev); - struct ax_device *ax = to_ax_dev(dev); - void __iomem *nic_base = ei_local->mem; - unsigned long dma_start; - - /* Round the count up for word writes. Do we need to do this? - What effect will an odd byte count have on the 8390? - I should check someday. */ - - if (ei_status.word16 && (count & 0x01)) - count++; - - /* This *shouldn't* happen. If it does, it's the last thing you'll see */ - if (ei_status.dmaing) { - dev_err(&ax->dev->dev, "%s: DMAing conflict in %s." - "[DMAstat:%d][irqlock:%d]\n", - dev->name, __func__, - ei_status.dmaing, ei_status.irqlock); - return; - } - - ei_status.dmaing |= 0x01; - /* We should already be in page 0, but to be safe... */ - ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); - - ei_outb(ENISR_RDC, nic_base + EN0_ISR); - - /* Now the normal output. */ - ei_outb(count & 0xff, nic_base + EN0_RCNTLO); - ei_outb(count >> 8, nic_base + EN0_RCNTHI); - ei_outb(0x00, nic_base + EN0_RSARLO); - ei_outb(start_page, nic_base + EN0_RSARHI); - - ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); - if (ei_status.word16) { - writesw(nic_base + NE_DATAPORT, buf, count>>1); - } else { - writesb(nic_base + NE_DATAPORT, buf, count); - } - - dma_start = jiffies; - - while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) { - if (jiffies - dma_start > 2*HZ/100) { /* 20ms */ - dev_warn(&ax->dev->dev, - "%s: timeout waiting for Tx RDC.\n", dev->name); - ax_reset_8390(dev); - ax_NS8390_init(dev,1); - break; - } - } - - ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ - ei_status.dmaing &= ~0x01; -} - -/* definitions for accessing MII/EEPROM interface */ - -#define AX_MEMR EI_SHIFT(0x14) -#define AX_MEMR_MDC (1<<0) -#define AX_MEMR_MDIR (1<<1) -#define AX_MEMR_MDI (1<<2) -#define AX_MEMR_MDO (1<<3) -#define AX_MEMR_EECS (1<<4) -#define AX_MEMR_EEI (1<<5) -#define AX_MEMR_EEO (1<<6) -#define AX_MEMR_EECLK (1<<7) - -/* ax_mii_ei_outbits - * - * write the specified set of bits to the phy -*/ - -static void -ax_mii_ei_outbits(struct net_device *dev, unsigned int bits, int len) -{ - struct ei_device *ei_local = netdev_priv(dev); - void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR; - unsigned int memr; - - /* clock low, data to output mode */ - memr = ei_inb(memr_addr); - memr &= ~(AX_MEMR_MDC | AX_MEMR_MDIR); - ei_outb(memr, memr_addr); - - for (len--; len >= 0; len--) { - if (bits & (1 << len)) - memr |= AX_MEMR_MDO; - else - memr &= ~AX_MEMR_MDO; - - ei_outb(memr, memr_addr); - - /* clock high */ - - ei_outb(memr | AX_MEMR_MDC, memr_addr); - udelay(1); - - /* clock low */ - ei_outb(memr, memr_addr); - } - - /* leaves the clock line low, mdir input */ - memr |= AX_MEMR_MDIR; - ei_outb(memr, (void __iomem *)dev->base_addr + AX_MEMR); -} - -/* ax_phy_ei_inbits - * - * read a specified number of bits from the phy -*/ - -static unsigned int -ax_phy_ei_inbits(struct net_device *dev, int no) -{ - struct ei_device *ei_local = netdev_priv(dev); - void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR; - unsigned int memr; - unsigned int result = 0; - - /* clock low, data to input mode */ - memr = ei_inb(memr_addr); - memr &= ~AX_MEMR_MDC; - memr |= AX_MEMR_MDIR; - ei_outb(memr, memr_addr); - - for (no--; no >= 0; no--) { - ei_outb(memr | AX_MEMR_MDC, memr_addr); - - udelay(1); - - if (ei_inb(memr_addr) & AX_MEMR_MDI) - result |= (1<<no); - - ei_outb(memr, memr_addr); - } - - return result; -} - -/* ax_phy_issueaddr - * - * use the low level bit shifting routines to send the address - * and command to the specified phy -*/ - -static void -ax_phy_issueaddr(struct net_device *dev, int phy_addr, int reg, int opc) -{ - if (phy_debug) - pr_debug("%s: dev %p, %04x, %04x, %d\n", - __func__, dev, phy_addr, reg, opc); - - ax_mii_ei_outbits(dev, 0x3f, 6); /* pre-amble */ - ax_mii_ei_outbits(dev, 1, 2); /* frame-start */ - ax_mii_ei_outbits(dev, opc, 2); /* op code */ - ax_mii_ei_outbits(dev, phy_addr, 5); /* phy address */ - ax_mii_ei_outbits(dev, reg, 5); /* reg address */ -} - -static int -ax_phy_read(struct net_device *dev, int phy_addr, int reg) -{ - struct ei_device *ei_local = netdev_priv(dev); - unsigned long flags; - unsigned int result; - - spin_lock_irqsave(&ei_local->page_lock, flags); - - ax_phy_issueaddr(dev, phy_addr, reg, 2); - - result = ax_phy_ei_inbits(dev, 17); - result &= ~(3<<16); - - spin_unlock_irqrestore(&ei_local->page_lock, flags); - - if (phy_debug) - pr_debug("%s: %04x.%04x => read %04x\n", __func__, - phy_addr, reg, result); - - return result; -} - -static void -ax_phy_write(struct net_device *dev, int phy_addr, int reg, int value) -{ - struct ei_device *ei = netdev_priv(dev); - struct ax_device *ax = to_ax_dev(dev); - unsigned long flags; - - dev_dbg(&ax->dev->dev, "%s: %p, %04x, %04x %04x\n", - __func__, dev, phy_addr, reg, value); - - spin_lock_irqsave(&ei->page_lock, flags); - - ax_phy_issueaddr(dev, phy_addr, reg, 1); - ax_mii_ei_outbits(dev, 2, 2); /* send TA */ - ax_mii_ei_outbits(dev, value, 16); - - spin_unlock_irqrestore(&ei->page_lock, flags); -} - -static void ax_mii_expiry(unsigned long data) -{ - struct net_device *dev = (struct net_device *)data; - struct ax_device *ax = to_ax_dev(dev); - unsigned long flags; - - spin_lock_irqsave(&ax->mii_lock, flags); - mii_check_media(&ax->mii, netif_msg_link(ax), 0); - spin_unlock_irqrestore(&ax->mii_lock, flags); - - if (ax->running) { - ax->mii_timer.expires = jiffies + HZ*2; - add_timer(&ax->mii_timer); - } -} - -static int ax_open(struct net_device *dev) -{ - struct ax_device *ax = to_ax_dev(dev); - struct ei_device *ei_local = netdev_priv(dev); - int ret; - - dev_dbg(&ax->dev->dev, "%s: open\n", dev->name); - - ret = request_irq(dev->irq, ax_ei_interrupt, ax->irqflags, - dev->name, dev); - if (ret) - return ret; - - ret = ax_ei_open(dev); - if (ret) { - free_irq(dev->irq, dev); - return ret; - } - - /* turn the phy on (if turned off) */ - - ei_outb(ax->plat->gpoc_val, ei_local->mem + EI_SHIFT(0x17)); - ax->running = 1; - - /* start the MII timer */ - - init_timer(&ax->mii_timer); - - ax->mii_timer.expires = jiffies+1; - ax->mii_timer.data = (unsigned long) dev; - ax->mii_timer.function = ax_mii_expiry; - - add_timer(&ax->mii_timer); - - return 0; -} - -static int ax_close(struct net_device *dev) -{ - struct ax_device *ax = to_ax_dev(dev); - struct ei_device *ei_local = netdev_priv(dev); - - dev_dbg(&ax->dev->dev, "%s: close\n", dev->name); - - /* turn the phy off */ - - ei_outb(ax->plat->gpoc_val | (1<<6), - ei_local->mem + EI_SHIFT(0x17)); - - ax->running = 0; - wmb(); - - del_timer_sync(&ax->mii_timer); - ax_ei_close(dev); - - free_irq(dev->irq, dev); - return 0; -} - -static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd) -{ - struct ax_device *ax = to_ax_dev(dev); - unsigned long flags; - int rc; - - if (!netif_running(dev)) - return -EINVAL; - - spin_lock_irqsave(&ax->mii_lock, flags); - rc = generic_mii_ioctl(&ax->mii, if_mii(req), cmd, NULL); - spin_unlock_irqrestore(&ax->mii_lock, flags); - - return rc; -} - -/* ethtool ops */ - -static void ax_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - struct ax_device *ax = to_ax_dev(dev); - - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); - strcpy(info->bus_info, ax->dev->name); -} - -static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct ax_device *ax = to_ax_dev(dev); - unsigned long flags; - - spin_lock_irqsave(&ax->mii_lock, flags); - mii_ethtool_gset(&ax->mii, cmd); - spin_unlock_irqrestore(&ax->mii_lock, flags); - - return 0; -} - -static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct ax_device *ax = to_ax_dev(dev); - unsigned long flags; - int rc; - - spin_lock_irqsave(&ax->mii_lock, flags); - rc = mii_ethtool_sset(&ax->mii, cmd); - spin_unlock_irqrestore(&ax->mii_lock, flags); - - return rc; -} - -static int ax_nway_reset(struct net_device *dev) -{ - struct ax_device *ax = to_ax_dev(dev); - return mii_nway_restart(&ax->mii); -} - -static u32 ax_get_link(struct net_device *dev) -{ - struct ax_device *ax = to_ax_dev(dev); - return mii_link_ok(&ax->mii); -} - -static const struct ethtool_ops ax_ethtool_ops = { - .get_drvinfo = ax_get_drvinfo, - .get_settings = ax_get_settings, - .set_settings = ax_set_settings, - .nway_reset = ax_nway_reset, - .get_link = ax_get_link, -}; - -#ifdef CONFIG_AX88796_93CX6 -static void ax_eeprom_register_read(struct eeprom_93cx6 *eeprom) -{ - struct ei_device *ei_local = eeprom->data; - u8 reg = ei_inb(ei_local->mem + AX_MEMR); - - eeprom->reg_data_in = reg & AX_MEMR_EEI; - eeprom->reg_data_out = reg & AX_MEMR_EEO; /* Input pin */ - eeprom->reg_data_clock = reg & AX_MEMR_EECLK; - eeprom->reg_chip_select = reg & AX_MEMR_EECS; -} - -static void ax_eeprom_register_write(struct eeprom_93cx6 *eeprom) -{ - struct ei_device *ei_local = eeprom->data; - u8 reg = ei_inb(ei_local->mem + AX_MEMR); - - reg &= ~(AX_MEMR_EEI | AX_MEMR_EECLK | AX_MEMR_EECS); - - if (eeprom->reg_data_in) - reg |= AX_MEMR_EEI; - if (eeprom->reg_data_clock) - reg |= AX_MEMR_EECLK; - if (eeprom->reg_chip_select) - reg |= AX_MEMR_EECS; - - ei_outb(reg, ei_local->mem + AX_MEMR); - udelay(10); -} -#endif - -static const struct net_device_ops ax_netdev_ops = { - .ndo_open = ax_open, - .ndo_stop = ax_close, - .ndo_do_ioctl = ax_ioctl, - - .ndo_start_xmit = ax_ei_start_xmit, - .ndo_tx_timeout = ax_ei_tx_timeout, - .ndo_get_stats = ax_ei_get_stats, - .ndo_set_multicast_list = ax_ei_set_multicast_list, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, - .ndo_change_mtu = eth_change_mtu, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ax_ei_poll, -#endif -}; - -/* setup code */ - -static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local) -{ - void __iomem *ioaddr = ei_local->mem; - struct ax_device *ax = to_ax_dev(dev); - - /* Select page 0*/ - ei_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, ioaddr + E8390_CMD); - - /* set to byte access */ - ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG); - ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17)); -} - -/* ax_init_dev - * - * initialise the specified device, taking care to note the MAC - * address it may already have (if configured), ensure - * the device is ready to be used by lib8390.c and registerd with - * the network layer. - */ - -static int ax_init_dev(struct net_device *dev, int first_init) -{ - struct ei_device *ei_local = netdev_priv(dev); - struct ax_device *ax = to_ax_dev(dev); - void __iomem *ioaddr = ei_local->mem; - unsigned int start_page; - unsigned int stop_page; - int ret; - int i; - - ret = ax_initial_check(dev); - if (ret) - goto err_out; - - /* setup goes here */ - - ax_initial_setup(dev, ei_local); - - /* read the mac from the card prom if we need it */ - - if (first_init && ax->plat->flags & AXFLG_HAS_EEPROM) { - unsigned char SA_prom[32]; - - for(i = 0; i < sizeof(SA_prom); i+=2) { - SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT); - SA_prom[i+1] = ei_inb(ioaddr + NE_DATAPORT); - } - - if (ax->plat->wordlength == 2) - for (i = 0; i < 16; i++) - SA_prom[i] = SA_prom[i+i]; - - memcpy(dev->dev_addr, SA_prom, 6); - } - -#ifdef CONFIG_AX88796_93CX6 - if (first_init && ax->plat->flags & AXFLG_HAS_93CX6) { - unsigned char mac_addr[6]; - struct eeprom_93cx6 eeprom; - - eeprom.data = ei_local; - eeprom.register_read = ax_eeprom_register_read; - eeprom.register_write = ax_eeprom_register_write; - eeprom.width = PCI_EEPROM_WIDTH_93C56; - - eeprom_93cx6_multiread(&eeprom, 0, - (__le16 __force *)mac_addr, - sizeof(mac_addr) >> 1); - - memcpy(dev->dev_addr, mac_addr, 6); - } -#endif - if (ax->plat->wordlength == 2) { - /* We must set the 8390 for word mode. */ - ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG); - start_page = NESM_START_PG; - stop_page = NESM_STOP_PG; - } else { - start_page = NE1SM_START_PG; - stop_page = NE1SM_STOP_PG; - } - - /* load the mac-address from the device if this is the - * first time we've initialised */ - - if (first_init) { - if (ax->plat->flags & AXFLG_MAC_FROMDEV) { - ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, - ei_local->mem + E8390_CMD); /* 0x61 */ - for (i = 0; i < ETHER_ADDR_LEN; i++) - dev->dev_addr[i] = - ei_inb(ioaddr + EN1_PHYS_SHIFT(i)); - } - - if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) && - ax->plat->mac_addr) - memcpy(dev->dev_addr, ax->plat->mac_addr, - ETHER_ADDR_LEN); - } - - ax_reset_8390(dev); - - ei_status.name = "AX88796"; - ei_status.tx_start_page = start_page; - ei_status.stop_page = stop_page; - ei_status.word16 = (ax->plat->wordlength == 2); - ei_status.rx_start_page = start_page + TX_PAGES; - -#ifdef PACKETBUF_MEMSIZE - /* Allow the packet buffer size to be overridden by know-it-alls. */ - ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; -#endif - - ei_status.reset_8390 = &ax_reset_8390; - ei_status.block_input = &ax_block_input; - ei_status.block_output = &ax_block_output; - ei_status.get_8390_hdr = &ax_get_8390_hdr; - ei_status.priv = 0; - - dev->netdev_ops = &ax_netdev_ops; - dev->ethtool_ops = &ax_ethtool_ops; - - ax->msg_enable = NETIF_MSG_LINK; - ax->mii.phy_id_mask = 0x1f; - ax->mii.reg_num_mask = 0x1f; - ax->mii.phy_id = 0x10; /* onboard phy */ - ax->mii.force_media = 0; - ax->mii.full_duplex = 0; - ax->mii.mdio_read = ax_phy_read; - ax->mii.mdio_write = ax_phy_write; - ax->mii.dev = dev; - - ax_NS8390_init(dev, 0); - - if (first_init) - dev_info(&ax->dev->dev, "%dbit, irq %d, %lx, MAC: %pM\n", - ei_status.word16 ? 16:8, dev->irq, dev->base_addr, - dev->dev_addr); - - ret = register_netdev(dev); - if (ret) - goto out_irq; - - return 0; - - out_irq: - /* cleanup irq */ - free_irq(dev->irq, dev); - err_out: - return ret; -} - -static int ax_remove(struct platform_device *_dev) -{ - struct net_device *dev = platform_get_drvdata(_dev); - struct ax_device *ax; - - ax = to_ax_dev(dev); - - unregister_netdev(dev); - free_irq(dev->irq, dev); - - iounmap(ei_status.mem); - release_resource(ax->mem); - kfree(ax->mem); - - if (ax->map2) { - iounmap(ax->map2); - release_resource(ax->mem2); - kfree(ax->mem2); - } - - free_netdev(dev); - - return 0; -} - -/* ax_probe - * - * This is the entry point when the platform device system uses to - * notify us of a new device to attach to. Allocate memory, find - * the resources and information passed, and map the necessary registers. -*/ - -static int ax_probe(struct platform_device *pdev) -{ - struct net_device *dev; - struct ax_device *ax; - struct resource *res; - size_t size; - int ret = 0; - - dev = ax__alloc_ei_netdev(sizeof(struct ax_device)); - if (dev == NULL) - return -ENOMEM; - - /* ok, let's setup our device */ - ax = to_ax_dev(dev); - - memset(ax, 0, sizeof(struct ax_device)); - - spin_lock_init(&ax->mii_lock); - - ax->dev = pdev; - ax->plat = pdev->dev.platform_data; - platform_set_drvdata(pdev, dev); - - ei_status.rxcr_base = ax->plat->rcr_val; - - /* find the platform resources */ - - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (res == NULL) { - dev_err(&pdev->dev, "no IRQ specified\n"); - ret = -ENXIO; - goto exit_mem; - } - - dev->irq = res->start; - ax->irqflags = res->flags & IRQF_TRIGGER_MASK; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { - dev_err(&pdev->dev, "no MEM specified\n"); - ret = -ENXIO; - goto exit_mem; - } - - size = (res->end - res->start) + 1; - - /* setup the register offsets from either the platform data - * or by using the size of the resource provided */ - - if (ax->plat->reg_offsets) - ei_status.reg_offset = ax->plat->reg_offsets; - else { - ei_status.reg_offset = ax->reg_offsets; - for (ret = 0; ret < 0x18; ret++) - ax->reg_offsets[ret] = (size / 0x18) * ret; - } - - ax->mem = request_mem_region(res->start, size, pdev->name); - if (ax->mem == NULL) { - dev_err(&pdev->dev, "cannot reserve registers\n"); - ret = -ENXIO; - goto exit_mem; - } - - ei_status.mem = ioremap(res->start, size); - dev->base_addr = (unsigned long)ei_status.mem; - - if (ei_status.mem == NULL) { - dev_err(&pdev->dev, "Cannot ioremap area (%08llx,%08llx)\n", - (unsigned long long)res->start, - (unsigned long long)res->end); - - ret = -ENXIO; - goto exit_req; - } - - /* look for reset area */ - - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (res == NULL) { - if (!ax->plat->reg_offsets) { - for (ret = 0; ret < 0x20; ret++) - ax->reg_offsets[ret] = (size / 0x20) * ret; - } - - ax->map2 = NULL; - } else { - size = (res->end - res->start) + 1; - - ax->mem2 = request_mem_region(res->start, size, pdev->name); - if (ax->mem2 == NULL) { - dev_err(&pdev->dev, "cannot reserve registers\n"); - ret = -ENXIO; - goto exit_mem1; - } - - ax->map2 = ioremap(res->start, size); - if (ax->map2 == NULL) { - dev_err(&pdev->dev, "cannot map reset register\n"); - ret = -ENXIO; - goto exit_mem2; - } - - ei_status.reg_offset[0x1f] = ax->map2 - ei_status.mem; - } - - /* got resources, now initialise and register device */ - - ret = ax_init_dev(dev, 1); - if (!ret) - return 0; - - if (ax->map2 == NULL) - goto exit_mem1; - - iounmap(ax->map2); - - exit_mem2: - release_resource(ax->mem2); - kfree(ax->mem2); - - exit_mem1: - iounmap(ei_status.mem); - - exit_req: - release_resource(ax->mem); - kfree(ax->mem); - - exit_mem: - free_netdev(dev); - - return ret; -} - -/* suspend and resume */ - -#ifdef CONFIG_PM -static int ax_suspend(struct platform_device *dev, pm_message_t state) -{ - struct net_device *ndev = platform_get_drvdata(dev); - struct ax_device *ax = to_ax_dev(ndev); - - ax->resume_open = ax->running; - - netif_device_detach(ndev); - ax_close(ndev); - - return 0; -} - -static int ax_resume(struct platform_device *pdev) -{ - struct net_device *ndev = platform_get_drvdata(pdev); - struct ax_device *ax = to_ax_dev(ndev); - - ax_initial_setup(ndev, netdev_priv(ndev)); - ax_NS8390_init(ndev, ax->resume_open); - netif_device_attach(ndev); - - if (ax->resume_open) - ax_open(ndev); - - return 0; -} - -#else -#define ax_suspend NULL -#define ax_resume NULL -#endif - -static struct platform_driver axdrv = { - .driver = { - .name = "ax88796", - .owner = THIS_MODULE, - }, - .probe = ax_probe, - .remove = ax_remove, - .suspend = ax_suspend, - .resume = ax_resume, -}; - -static int __init axdrv_init(void) -{ - return platform_driver_register(&axdrv); -} - -static void __exit axdrv_exit(void) -{ - platform_driver_unregister(&axdrv); -} - -module_init(axdrv_init); -module_exit(axdrv_exit); - -MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver"); -MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:ax88796"); |